Diesel Hard To Start

If you do not allow the intake heaters to heat and try to start it right away it may crank for a little longer and run rough. I typically only use it on the weekends, and lately it is becoming very hard to start. If neglected long enough, stiction can cause irreparable spool valve bore wear, with expensive injector replacement being the only permanent solution. The signal on the new starter capture is a lot cleaner too. Hello fellow Golfies, I'm new to the site and not really sure if I'm in the correct area but have a slight problem with my 2005 TDI and need some help. It's that time of year again. 6L diesel it recently became harder to start. Martin Truex Jr. Start with the filter, the CAV filters often did not have all the O rings and the there is the thin one in the priming pump. It doesn't seem to matter if the engine is warm or not. I bought a Renault Kangoo van 1. HARD STARTING COLD-6. Otherwise priming pump Is suppose to be pumped around 200 times then wait and another 200 times or similar to start. I have to use starting fluid ( I know, a big no, no) to start it. When they have a hard time starting when hot, it is usually caused by the fuel running back into the tank. i removed both fuses supported by the service door. hoping someone can help me. That being said, here are six tips for starting a cold diesel engine and maintaining your equipment over time. If you have access to a DRB (Daimler scan tool) check fuel pressure. It should be 3-5 psi from idle thru full throttle. Apply to Diesel Mechanic, Mechanic, Equipment Operator and more! Diesel Mechanic Jobs, Employment | Indeed. 2 'Burb is running goodthe only problem is that it's hard to start. Another problem resulting from worn parts is a delay in the start of injection which in turn results in rough running at low RPM or your diesel not starting. Immediately after the wait to start light goes off, turn the ignition key to START. It usually takes several tries to get it running, but once running there are no problems with it. 5, and it wouldn't start for over a minute of cranking. 7L Power Stroke Technical Info > 6. If you have used Stiction Eliminator, Diesel Extreme, and Diesel Winter Anti-Gel as recommended above, and you are still having trouble with cold starts, it's likely that the glow plugs are not operating correctly. Checking the voltage, resistance and amperage (current) flow is the first way to check glow plugs. It has clocked 170k and not burning engine oil. How a Diesel Engine Fires When we take a closer look at the basic mechanical principles of a diesel engine it become easier to understand why reaching for the starter fluid when you are having a tough time getting your Kubota to start is not a good idea. Remember, the only thing starting a diesel engine is compression, they have no spark! (And no, the glow. when starting,,,white smoke is antifreeze,,lite greyish smoke is unburner diesel,,,it will have a strong diesel smell if diesel,, the smoke will smell like sweet diesel if its antifreeze FIXX View Public Profile. Just wait the 5 seconds, then switch off power and redo a few times and then try starting. Fuel filters generally need to be changed every 20,000-40,000 miles, If. It runs like the wind and fuel economy has been great. Below are five of the most common causes that you should investigate immediately upon experiencing this kind of problem. Some 1996, 97 or 98 VIN Z vehicles may experience a hard start, no start, DTC P0215 or a leaking electronic shutoff solenoid (ESO). 93 ford f250 7. I have a 2005 crdi diesel santa fe that i have a strange problem with it starts up first time no problem in the mornings and can drive all day long. 0 d4d is hard to start when the engine is warm. I also replaced the water seperater & the fuel filter( I did this after the fact that it wouldnt start and I did fill up the filters with diesel. Unlike other diesel engines the Powerstroke has two oil pumps. If your glow plug system is working properly chances are your injector spool valves are sludged up inside which cause a hard/no start cold. Engine Stalls. Start with the filter, the CAV filters often did not have all the O rings and the there is the thin one in the priming pump. The fuel needs to be injected before the piston reaches top dead center to create a flame front in the cylinder. Soap box: Electronic pulsed fuel injections systems are complex and are not a topic for back-yard mechanics. Glow plug(s) failure(s) will cause hard starting, but typically engine will begin to run smoothly within one to two minutes after starting. 0L Powerstroke with 171+K on it. If no or low fuel pressure the nasty little culpret may be a 25 cent o-ring. The DNR had a hard time convincing landfills to take potentially infected. My colleague has a 306 diesel, that on starting in the morning has to turn over for ages before it will - eventually - come to life. 2004 dodge ram 2500 5. a co worker of mine has a 94 chevy with the turbo diesel. Checking the voltage, resistance and amperage (current) flow is the first way to check glow plugs. 3 this can sometimes get your injectors to work better. A friend of mine has a 1999 F250 that intermittantly has a hard time starting when warm. a laser therometer would help with this. I have a 2000 2. The Dodge automatic tranny is very robust and does what it was intended to do very well. My battery is very new it is all right. when running it will restart if hot and just shut off any amount of cooling and same hard start. I tested glow. But the effort has been plagued with troubles from the start. Chase Elliott qualified second, but he will start from the rear of the field due to an engine change earlier in. idles fine and revs hard at. The Swiss researchers estimated this would be equivalent to about two-thirds of man-made carbon emissions since the start of the miners used diesel pumps to suck up deep layers of the earth. Bug sprayer is cheap and I keep it full of diesel to wash parts and such with. 2003 dodge ram cummins hard to start? it takes about 30 cranks for it to start and now it wont start in less you cycle the key about 15 to 20 times and it will start but it starts hard. It doesn't seem to matter if the engine is warm or not. If your diesel is a hard to start from cold and smokes badly, the glow plugs are often the culprit but do not forget the relay, it's easy to check and fix. 10 Tips and Tricks to help your VW diesel start in the winter. Attempt to start the vehicle again by heating the. 3 diesel hard to start in cold. If the engine cranks slowly, insufficient heat will be generated and the engine will not start. the glow plugs are glowing. Extreme engine problems, such as a cracked block, a cracked cylinder head, leaking valves or a blown head gasket,. 0L Ford E-350, E-450, E-550 series vehicles equipped with a 6. I've got to cycle the glow plugs a couple of times, crank it over. When an engine is hot and hard to start, the problem usually has to do with the fuel. My Beetle is hard to start once the temperature get down below say 50F. 3 IDI Motors), 7. Diesel engines require expertise to repair. Choose a service from the following list: -- select service -- Excessive Noise Diagnostic Excessive Smoke Diagnostic Glow Plug Replacement Hard Starting and Drivability Diagnostic Turbocharger Repair. My first thought was that it could be the glow plugs, however after some reading, I believe that glow plugs are only required when temperatures are approaching freezing, which isn't the case here in the UK at the moment. I have a history of diesel ownership and this is the first one where I don't notice the. Once started it runs fine but you can stop and try to restart and the same thing happens. Meron kaming L300 van, diesel, kapag pinatay siya pagkatapos ng mahabang byahe, like 1 hr, taz start maybe after 15 mins,. 2 Civic diesel. 2001 F250 diesel hard starting [ 1 Answers ] My F250 diesel is hard starting when it sits overnight in cold weather. It is no different today with electronic diesels. I can't believe it gets over 19 mpg on diesel crazy. Diesel engines require expertise to repair. Same problem. Not sure what the problem is need help with fuel issue on 98 diesel. Why do diesel engines have problems starting in cold weather? the vaporization of the fuel is more difficult if the temperature is lower and so it’s more difficult to start combustion and. This hard start situation is new however, (I'm told). In above freezing temperatures it starts fine, but when it gets colder out it becomes more difficult. It always starts easy when cold. And finally pull the glow plugs and test them one at a time. Maybe try a diesel conditioner, as we had this problem at work just the other week. It's very unlikely to be the high pressure pump but more likely to be a faulty injector or EGR fault. 4L fuel delivery system differs from the 6. Need some help again. Hard to start Kubota I know this is a tractor board, but bear with me. Doing so is essential to keeping your engine in working order for seasons to come. Hi, I have a 7/99 turbo diesel Jackaroo that has a starting problem. Washers on fuel connectors replaced o rings in lift pump replaced. First tractor ever and first diesel ever so its all new to me. when running it will restart if hot and just shut off any amount of cooling and same hard start. Now thinking that it could be a fault with the fuel pump inside the diesel tank. A fellow RVer suggest using an ether starting fluid, but I'm apprenhisive about using a starting fluid on a diesel. Hey guys,just picked up a 1993 ford F250 diesel 4x4. 0 diesel 2003 when i bought it had a full tank of diesel started lovely drove lovely now the fuel as gone below half way its getting hard to start so i read up about it and pointed towards the pump in the tank no doing its job right so i buy one on ebay not the complete type just the pump so had to take the old one apart and. 3 idi) has been getting hard to start too no return line leaks. Another problem resulting from worn parts is a delay in the start of injection which in turn results in rough running at low RPM or your diesel not starting. Slightly less hard-core, The winch is an option on the Tremor model starting early next year. My Toyota 2C Diesel is having intermittent episodes of difficult starting when it is warm. ) Fuel pressure gauge; Assistant/helper. I thank all of you for your help and am looking forward to fun hours with my new hobby , for sure I will get strong arms. Glow plugs have two heating elements that allow them to get very hot very quickly for fast starts. Diesel Engine Starting Problems If you live in a very cold climate and own a diesel automobile such as a car or an SUV, I am sure you know what it means to start the engine on a cold morning. Diesel engines rely solely on compression to raise the temperature of the air to a point where the diesel combusts when introduced to the hot high-pressure inside the engines combustion chamber. Perkins Diesel - Starting / Running Issue. 6 CRDI Diesel FD very hard to start from cold « Reply #27 : September 16, 2016, 04:16:54 » Reading all this with interest as mine is a 2008 CRDi and I find it's harder to start on cold mornings but not too bad. Eliminate the obvious first. If your Sprinter cranks but wont start: 1. "I would NEVER use ether in a small diesel engine, unless the builder suggested it. diesel engine hard start when hot magandang hapon mga sir. No matter what you do then it wont start unless you just keep cranking. It then fires but is down on power from normal. 0L Ford E-350, E-450, E-550 series vehicles equipped with a 6. 3 diesel with 118,000 miles on it. This is an especially likely culprit if the engine dies shortly Clogged fuel filters. with a multimeter check for continuity between the prongs on the plug. 0L Powerstroke with 171+K on it. 3 Powerstroke Hard to Start issues 2001 ford f250 7. Diesel won’t start when it’s cold – could be Glow Plugs. The solenoid plunger is working. 0L Ford diesel engine may experience no starts, hard starts or rough running when cold and may be accompanied with diagnostic trouble codes (DTCs) P0611, P1378 and/ or all 8. Before you go out and buy a new battery, read this. If those glow plugs aren't working, it'd be hard to start the engine. 2005 2500 SLT BIGHORN 6-SPD (G56) 4WD QC SB LT ALMOND PEARL METALLIC on COOPER LT275/70R18, MB Razor 18 inch alum. 1993 topkick with 3116 cat is hard to start every morning, replaced intake heater,check valves,filters, shut off solonoid, installed electrical fuel pump( mech still operational) engine does not lose fuel back to tank, most mornings have to spray with quick start. So far I have established that. If i let it sit for an hour or even a day or two it is very hard to start. NoPaint you could just take her hairdrier and use it like a Binford Tool Hot Air 2000 forced induction Kubota starter. Hello there, I have a MF35 with the 23C four-cylinder diesel engine. I just wanted to add the fact that diesel's compression ratio's can be as high as 21:1-23:1 (older ford IDI engine's) but typically sit around 18-20:1. Put things back and refill tank with fresh diesel. I have a Bachelors in Diesel Science and currently work for and have worked with several industry leaders in diesel engines. The sting of summer has worn off and cooler temps are steadily creeping in. 5L diesels, there have been reports of heat from a still-warm engine causing the 125-degree inhibit switch inside the controller to shut off making the engine hard to restart. 2001 Beetle TDI - 80k miles. Car Hard To Start I got a golf mk4 gt tdi. This typically occurs due to the engine being too cool to burn the fuel, often resulting from low compression in one cylinder, problems with the fuel injection timing or a defective fuel injector. WHAT COULD LEAD TO HARD STARTING OF AN ENGINE" EITHERE A DIESEL ENGINE OR A GASOLINE ENGINE. The solenoid plunger is working. There’s a myth that diesel doesn’t burn, diesel does burn – one of the major differences between diesel and petrol is the way the two fuels burn. The injectors do not fire. 9 that is just generally a hard ***** to start. Also i did run the tank empty on a very old gas. It should be taken as an indication that there is a problem existing (or developing), that will potentially shorten the engine life, or result in unnecessary costs. "I would NEVER use ether in a small diesel engine, unless the builder suggested it. 5, and it wouldn't start for over a minute of cranking. It seems to happen at random, and when cold its takes a lot of cranking to get it to start, (too much) and then when it starts it seems to fire up on not all cylinders, then after a second or two all the rest of the. After pre-heating the starter and then turning the engine on, all we could hear was tick-tick-tick-tick-tick (check out the video below to hear the sound - it's below the following picture). At the same time, battery output drops, reducing the number of amps available to crank the engine. still will not start with the start switches. Nothing can make a botie take a quick breath faster than pushing the start button and having no response from the engine. During winter, diesel engines are normally hard to start and the best way to remedy this is to install an electrical heater to the cylinder block. I had a Volkswagon Rabbit diesel that was hard to start when cool. Your engine could be low by just 3-4 quarts causing a hard start. FROM COLD DIFFICULT TO START - FIRES UP - ENGINE HUNTS AND VIBRATES EXHAUST SMOKY - SETTLES AFTER COUPLE OF MINUTES ok your issue with injectors -- have them tested -- some of them pour diesel but not inject. I just purchased a "63 4010 diesel. it does take a whil to heat up, you cant plug it in. Will investigate further. When you say hard-starting (and based on the parts that you changed), I am assuming that the engine is cranking over slowly, or poorly. I just replaced the glow plugs and relay. He says it runs perfect otherwise. Center Hassan Whiteside came down hard, holding his left knee before heading straight to the locker room. "I would NEVER use ether in a small diesel engine, unless the builder suggested it. However, in cold weather it's worth checking the glow plugs: these are pre-heaters fitted to most diesel engines to warm the air in the intake to improve cold starting. when i turn the ignition on the glow pluds light goes off in a sec and car is hard to start, specially Small Block Chevy Questions Okay, I have a 307 engine from a 1970 El Camino. You may have to register before you can post: click the register link above to proceed. 0L Powerstroke with 171+K on it. Diesel Engine Starting Problems If you live in a very cold climate and own a diesel automobile such as a car or an SUV, I am sure you know what it means to start the engine on a cold morning. He doesn't have any other driveability problems. This car is a commom rail diesel, there is a 16 way port, and will read EOBD, however it wont tell you much, and with this type of fault it is best to start your testing at the injectors. OC Diesel recognizes that some 2003-2005 6. The fuel needs to be injected before the piston reaches top dead center to create a flame front in the cylinder. recently his truck would some times not start no matter what the condition (cold, warm, first start, 30th start of the day), didnt matter. If you want to start a diesel business, you will have to go for the bio-diesel. Diesel glow plugs are subject to extreme temperature changes and high combustion pressures. The dual ICP test were within 1 of a volt at all times. ISM Hard Starting Hi guys, ive got an ISM Cummins engine in a Sterling, and lately ive noticed that its real slow to fire up. Ford F250 and F350 Diesel: Why Won't My Truck Start? Diesels have different components that could go wrong and cause them not to start, when compared to a gas engine. The main injector pump went out and I had it replaced. Difficult start of the warmed diesel engine as opposed to the easy cold start can be caused by the high pressure fuel pump malfunction connected with the plunger pair wear. This article will focus on a common driveability complaint with the Ford 6. 1999 to 2016 Super Duty - Diesel hard to start - What would make my 2006 F250 Turbo Diesel hard to start? Once it starts, it will run forever. Troubleshooting Diesel Engine Hard Starting, Low Power and Exhaust Smoke. They won't let us have diesel JK's herein the U. Hi, I have a 7/99 turbo diesel Jackaroo that has a starting problem. Looking at diesel diagnosis, let's discuss the two most basic needs of diesel engine operation: proper combustion chamber heat and the proper amount of fuel injected at the proper time. I had this with a 106 1. recently his truck would some times not start no matter what the condition (cold, warm, first start, 30th start of the day), didnt matter. On May 15, 2008, a question titled 'Hard starting S60' (2922) was added to the Detroit forum on Diesel Talk. Holley offers tips on diagnosing hard starting engines that are already at proper operating temperatures. Diesel Injection Service diesel and turbocharger trouble charts, hard starting diagnosis, stalling, smoke, etc, PCM fault codes: from the '94 service manual (for 1994 - 1997 models) Turbocharger diagnostic tips: 1994-1998 12 valve fuel pressure should be 18-24psi at idle and 28-36 at 2000 rpm with no load. 10 Tips and Tricks to help your VW diesel start in the winter. By keeping those basics in mind, a seemingly hard no start problem can be simplified. Each successive start requires more turns of the engine, then finally it won' start after twenty or so revolutions. When it does, it emits loads of blue smoke for the first few. Previous diagnostics may lead to the replacement of the fuel injection pump. 2005 2500 SLT BIGHORN 6-SPD (G56) 4WD QC SB LT ALMOND PEARL METALLIC on COOPER LT275/70R18, MB Razor 18 inch alum. Thankfully new TDIs aren’t as hard to start as older IDIs or larger diesels can be but I thought it would be a good time to go over some basic winter starting tips to help make our mornings easier. When this happens, be methodical in your troubleshooting and you will reach the right diagnosis more quickly and waste less time and money trying to solve the problem. i have checked the fuel with the right gages and i am getting fuel. Hard starting 6. Diesel engines are equipped with things called glowplugs. Apply to Diesel Mechanic, Mechanic, Equipment Operator and more! Diesel Mechanic Jobs, Employment | Indeed. Learn about this problem, why it occurs, and how to fix it. Unlike other diesel engines the Powerstroke has two oil pumps. New member, I have a 30hp 4 cylinder universal engine in a Pacific Seacraft 37ft sailboat. Hard to start kubota I have a B20 Kubota 20hp and it is hard to start when already warm. 0 powerstroke diesel. if the valve inside is bad, it will let all residual pressure bleed off, and will give hard starting. Diesel's viscosity increases at lower temperatures, known as "gelling" or "waxing", eventually to a point where it cannot be pumped and the engine dies--or is unable to start in the first place. Fuel possibly draining back to the tank do to a compromised supply line. Re: ONAN Diesel 7. Listen to the glow plug relay. To repair this, drain the old fuel and you may need to flush fuel lines and injectors. If I plug in the block heater it takes fewer cycles to start. Once started it starts first time everytime , runs like a dream. The engine should start within three seconds depending on how cold it is and if you wait for the WTS light to go out. Previous diagnostics may lead to the replacement of the fuel injection pump. If I cycle the glow plugs about 10 or 12 times it will start easily. Fuel running back can be caused by bad seals on the pump it does not leak diesel but draws air in as the diesel runs back. hard starting when cold vehicle cranks a lot to start when the engine is cold, but starts on the first crank when it is warm Answer this question I have this problem too Subscribed to new answers. I think his name is Powerstroke help from Georgia. now it wont fire up at all. Hello! My girlfriend has a 2000 beetle diesel and we are having a very hard time starting it. My '99 A4 Jetta has been hard to start when hot since I bought the car. I tested glow. 2 diesel maverick that has about 380000km. 0 diesel v6 engine, and others. duramax hard to start like 5 to 10 sec. 3 no start is to simply check the oil level. Don't risk your vehicle performance. After investigating on line discovered that bad fuel injectors for the 03 diesel is a common problem. After this it became difficult to start SOMETIMES and others start up as soon as you touch the starter. Check fuel for contamination. Auto Repair For Dummies, 2nd Edition. If you have access to a DRB (Daimler scan tool) check fuel pressure. It looked as if Whiteside twisted his left knee, but the injury must’ve looked worse than it was because Whiteside returned to the game to start. a laser therometer would help with this. Because a lack of proper air or fuel affects the performance of the vehicle, it is likely to lose significant gas mileage. The truck is in really good shape having only 182 thousand KMs on it. does this sound. Why Is My Ford F350 IDI Diesel Hard To Start. 5L Turbo Diesel. If your diesel engine is malfunctioning, allow Tire-Rama to diagnose the problem. 5 Turbo Diesel Smoke & Rough Start By Diesel Performance Truck on April 1, 2011 in For all of you with 6. Customers complaint, at times the car is very hard to start from cold, but i find it will start hot ok. The car is a 2005 Passat TDI. 3 idi) has been getting hard to start too no return line leaks. Not sure what the problem is need help with fuel issue on 98 diesel. I have rebuild or been involved in 10,000's of diesels being rebuild both in a shop and (in the field, mostly due to the size) and I have never had this starting issue you describe occur once. Re: Starting problem in the morning, Saab 9-3 1. Diesel engine hard to start. If a customer brings a Ram truck equipped with a Cummins Diesel engine in with a hard start complaint, there are a number of possible causes. Hard Start/No Start/Long Crank Time - F-Series Built From 2/9/94 And Econoline Built From 8/94 All With 7. Never use ether or any other starting chemical to help start a diesel engine. 0 diesel v6 engine, and others. A shot of diesel starter spray helped but they say it's not good for the engine in the long run. Most of the time it start really easy but every so often it just turns and turns and wont fire. Hello! My girlfriend has a 2000 beetle diesel and we are having a very hard time starting it. Hard Start/No Start/Long Crank Time - F-Series Built From 2/9/94 And Econoline Built From 8/94 All With 7. My battery is very new it is all right. Here are some quotes: From Marine Mechanic. 3 IDI turbo diesel with 340 000km on it ever since i have owned it it has always given me a hard time starting. You have to find a trade association that you can network the activities of the business. We have a 98 6. does this sound. 0 diesel 2003 when i bought it had a full tank of diesel started lovely drove lovely now the fuel as gone below half way its getting hard to start so i read up about it and pointed towards the pump in the tank no doing its job right so i buy one on ebay not the complete type just the pump so had to take the old one apart and. See Diesel Fuel Requirements and Fuel System on page 5-2. HARD STARTING COLD-6. GUNTER: The green economy 'magic-wand thinking' continues. Before you go out and buy a new battery, read this. recently his truck would some times not start no matter what the condition (cold, warm, first start, 30th start of the day), didnt matter. Once started it runs fine but you can stop and try to restart and the same thing happens. Your Ford 6. Good luck on finding a solution to your start-up problem!. A fellow RVer suggest using an ether starting fluid, but I'm apprenhisive about using a starting fluid on a diesel. 2/ At 135k miles the injectors require servicing i. This is an especially likely culprit if the engine dies shortly Clogged fuel filters. The dual ICP test were within 1 of a volt at all times. If no or low fuel pressure the nasty little culpret may be a 25 cent o-ring. supermarket fuel has been known to have a lower certain number, this means it's capability to combust. duramax hard to start like 5 to 10 sec. If those glow plugs aren't working, it'd be hard to start the engine. You may have to register before you can post: click the register link above to proceed. Glow plug(s) failure(s) will cause hard starting, but typically engine will begin to run smoothly within one to two minutes after starting. The Dodge automatic tranny is very robust and does what it was intended to do very well. 5l diesel and the truck has a hard time starting when the engine is cold. I was told it was the glow plugs but I don't think so,they wouldn't effect warm starting. Changed fuel filter help a little now back (not starting) wether does not have to be cold to do this. a co worker of mine has a 94 chevy with the turbo diesel. once its running and warms up its fine. If the engine cranks slowly, insufficient heat will be generated and the engine will not start. Doing so is essential to keeping your engine in working order for seasons to come. " From Sound Marine Diesel LLC. Come along with Eric O. Types of operation, such as excessive idling, short run time, light work and city type driving, all contribute to deposit formation which can result in poor cold start. Extreme engine problems, such as a cracked block, a cracked cylinder head, leaking valves or a blown head gasket,. Glow Plugs and solenoid seem to be working. 9 diesel either cranks but won't start, or it just won't crank. Since a diesel engine may have as many as 10 glow plugs, one for each cylinder, you may not notice when one goes bad, but if three or more go bad, you will notice the engine has become very difficult to start. I read engine codes. 2005 2500 SLT BIGHORN 6-SPD (G56) 4WD QC SB LT ALMOND PEARL METALLIC on COOPER LT275/70R18, MB Razor 18 inch alum. Otherwise priming pump Is suppose to be pumped around 200 times then wait and another 200 times or similar to start. In the last year, the need for action on climate change has become ever more clear. 5 kw trouble starting sorry for the poor explanation. Top 5 Reasons for Hard Starting When Cold. 5 Turbo Diesel Smoke & Rough Start By Diesel Performance Truck on April 1, 2011 in For all of you with 6. It started getting a hard start about a month ago. In any diesel engine, only air is introduced to the. Will investigate further. I have changed glow plugs and controller finally got the GP light to work (glow plugs working) it seams to be cycling long enough but still won't start. Now, if I leave it overnite, it won't start without a lot (and I mean alot) of cranking. When this happens, be methodical in your troubleshooting and you will reach the right diagnosis more quickly and waste less time and money trying to solve the problem. Then on the 4th-5th, it'll generally start. If I cycle the glow plugs about 10 or 12 times it will start easily. Diesel won't start when it's cold - could be Glow Plugs Cold weather, especially extreme cold weather, causes havoc with your diesel engine ignition system. When they have a hard time starting when hot, it is usually caused by the fuel running back into the tank. as long as it is rated for diesel fuel it should be fine the over flow valve is located on the inboard forward side of the injection pump. He says it takes a lot of cranking before it fires. See what causes these high pressure injectors to fail in this month's issue of Diesel Power. If there is a leak on the line between the filter and injection pump, the engine will seem to try to start, then become hard to start. I was told it was the glow plugs but I don't think so,they wouldn't effect warm starting. In general it is achieved by treatment with additives that change the low temperature characteristics of the fuel. 5L diesels, there have been reports of heat from a still-warm engine causing the 125-degree inhibit switch inside the controller to shut off making the engine hard to restart. End to End Solution. Thanks so much, now I have to take it apart to put the hard line on. Diesel compression goes to 450 PSI. A car that is hard to start can be a major inconvenience. A fellow RVer suggest using an ether starting fluid, but I'm apprenhisive about using a starting fluid on a diesel.